Enter TRACKER as your name at the name screen.
Get all cars
Enter CARNIVAL
as your name at the name screen.
Small cars
Enter DRINKME as your
name at the name screen.
Same cars in multi-player mode
Enter JOKER
as your name at the name screen.
UFO car
Enter URCO as your name
at the name screen.
All weapons
Enter SADIST as your name at the name
screen. Use the right shift key for weapon select.
Alternate view
Enter
TVTIME as your name at the name screen. Press F5 or F6 for alternate views.
Fly through things
Enter MAKEITGOOD as your name at the name screen.
Press F6 once for no clipping, twice for flight mode

Rune

Access cheat mode
There are two ways to enable cheats: you can either bind
some keys before you play the game, or you can access the game's system console
during gameplay.
To bind the keys, open your game's program folder and find
the system folder. Now locate your user.ini file, and open it using either
wordpad or notepad. Next, find an open letter like "K=". After the "=" type CheatPlease
(it should like this: K=CheatPlease). On the line "G=" type God after
the "=" sign (G=God). Close the user.ini file, and enter your game. Start the game,
and while you are playing, you can now hit the K key to enable the cheat mode,
or hit the G key to enable god mode. You can hit the same keys again to disable
the cheats.
Otherwise, instead of editing your user.ini file you can
hit the Tab key during gameplay to access the game's system console. Type "CheatPlease"
in the console space that opens on your screen. This will enable the
cheat mode as well. Now you can access the console at any time during the game.
To enable certain cheats, type in the codes below: God -- god mode
Ghost -- no-clipping mode
Walk -- disable no-clipping
mode

Press enter during gameplay and type the corresponding code at the prompt for the
cheat functions listed below: God mode -- mptedthehead (note: you can still die by falling when in god mode)
Unlock
all single-player levels -- mpshipit
Restore health and sanity
-- mpjuiceme (note: you will lose many special talents when activating this cheat)

To gain access to these cheats hit ENTER, TYPE IN THE CHEAT, and then hit ENTER once
again. After you complete these steps the cheat should then be enabled.Power overwhelming - God Mode
Show me the money - Gives you 10,000 gas and
10,000 crystal
Operation CWAL - Speeds construction of buildings and units
The Gathering - Gives unlimited energy to all casting units
Game
over man - Ends your game as a loss
Staying Alive - Prevents the mission
from ending due to victory or defeat
There is no cow level - Completes the
current mission
Whats mine is mine - Free minerals
Breathe deep -
Free Vespene Gas
Something for nothing - Gives all upgrades
Black
Sheep Wall - Shows entire map
Medieval man - Free upgrades to units
Modify
the phase variance - Ability to build all buildings
War aint what
it used to be - Disables fog of war
Food for thought - Ability to build
units beyond the support limit
Ophelia - Enter this to enable level skipping
cheat. Then enter the mission you want to skip to (that is, "terran10") to
go there.
Power Overwhelming - Can't be beaten.
Show Me The Money -
10000 in ore and gas.
If you click animals 13-14 times they should explode
like nukes.

StarCraft: Brood War
Build over supply limit as Protoss or Zerg

To build over the supply limit of 200, have your Dark Archons mind control any protoss
unit, and you can do this just as much as you want! To build over the 200
supply limit of the zerg simply have at least 8 drones and a whole lot of minerals.
Next mutate them into a cheap building like a creep colony and rush back
to your Hatchery (Lair or Hive) and find any larvae and mutate it into the unit
that you want and then while it is mutating stop the drones from finishing and
ta-da! Sadly, there is no way to build over the 200 supply limit as Terran.

Control the animals

When playing as the Protoss and on a level with neutral animals, build a Dark Archon
and research its mind control ability. When you see an animal, you can mind
control it. Once you do, it can be used as a cheap and expendable scout.

To instantly upgrade all of your units press ENTER then type "something for nothing"
and press ENTER again.
Infinite energy
For infinite energy, press
ENTER then type "the gathering" and press ENTER again.

Instant loss

To instantly lose the current level press ENTER then type "game over man" and press
ENTER again.

Instant victory

To instantly win the current level press ENTER then type "there is no cow level"
and press ENTER again.

Invincibility

To make all of your units invincible press ENTER then type "power overwhelming" and
press ENTER again.

Level Select

To choose your level do the following:Enter the game.
Press ENTER
Type "ophelia"
Press ENTER
Type
the name of the desired level.
Press ENTER again.
StarCraft level names consist of the race followed by the mission number. eg:
terran1, terran2, zerg1, zerg2, protoss1, protoss2, etc.
For Brood War
levels prefix the name with an 'x'. eg: xprotoss5

Lift the fog

To prevent the fog of war from coming back, press ENTER then type "war aint what
it used to be" and press ENTER again.

Morphing units to mutalisk

First you must evolve the lurker aspect for the hydralisk after that select one unit
of your hydralisk and set it as a team of no 9 on the key , then group the
zerglings on any number from 1 to 8 then select your hydralisk ang press the key
( H + L ) if done correctly the morphing of the lurker will be on hold after
that press the number of your ( grouped zergling + L )if done correctly your zerglings
will transform into larva and press the (ESC) button to make them into
MUTALISK.

Receive 10,000 Minerals and Gas

For a helpful bonus press ENTER then type "show me the money" and press ENTER again.

During gameplay, press 7 on the keypad to display the console. Type im a cheater
to enable cheat mode. Now, enter one of the following codes at the console window
to activate its cheat: God mode --- quickening
Full energy --- dilithium
All items --- boom stick
5000
more credits --- one million dollars
All ships --- ragtag
Returning to base to complete mission --- there is no spoon
Full ammunition
--- come get some

Torment
Infinite money

Go to the Smoldering Corpse bar, then go to Moachi inside the eastern part of the
bar. Keep on telling her about how she is not a dustie and ask for some money.
Repeat this as many times as needed to get 50 gold with each request.

Get good spells early

Go to the inn (Dorm) at the Sensate place in the clerks ward. Save your game and
try to steal from the lady who gives you a room until you get a key. Go into the
eastern room and search the cabinets on the north wall. There are also several
charms that may come in handy later in the game.

Be a Godsman and get the best axe

Talk to the Auctioneer outside the market in the lower ward. Perform the tasks he
will ask you to do. The second task will be to deliver a message to a Godsman,
therefore granting you passage to the northern gate (in the lower ward). You will
eventually meet a man in a room surrounded by other people. Ask him about becoming
a Godsman. He will tell you to forge a weapon in the foundry, the first
room you saw when you entered the place. Get the items you need from the clerk
in the southwest part of the room. Ask Thildin, the muscular man, for some ore.
Then, find the only empty barrel and make the weapon of your choice. Report back
to the man that told you how to forge the weapon. Next, there will be a murder.
You only need to know where the people are--you already know where Thildon
is; the man whose name starts with "S" is in the same room as man that told you
how to forge the weapon, and the other is on the balcony just above him. Talk
to Thildon one more time and report back to the man that told you how to forge
the weapon. Just convince the man in the locked quarters to live. Be nice to him.
You will now become a Godsman and have access to the best axe in the game for
5000 GP.

Total Annihilation

1-First press ENTER to get the message line.
2-Press + and enter one of the
following codes.
3-After entering the code press ENTER to activate the code.
To deactivate a code just enter it again +ATM - Gives you 1000 metal and energy.
+CDSTART - Starts CD Music.
+CONTOUR#
- Displays a 3D contour, # = 1-15.
+CONTROL# - Lets you to control
a different skirmish AI.
+DITHER - Dithering instead of line of sight.
+DOUBLESHOT - All weapons do twice the damage.
+HALFSHOT - All weapons
do half the damage.
+ILOSE - Causes you to lose.
+IWIN - Causes
you to win.
+NOENERGY - Drops your energy to 0.
+NOMETAL - Drops
your metal to 0.
+NOSHAKE - Stops explosion screen shakes.
+NOWISEE
- Full map and disables line of sight.
+RADAR - 100% radar coverage.
+SING
- This command makes units "sing" when given orders.
+SWITCHALT
- Allows you to switch between squads with alt+# keys.
+VIEW# - Lets you
see how much metal and energy a player has.

Below is the first Campaign cheat code:

Click on Total Annihilation's Single Player icon. When the Single Player Game page
appears type DRDEATH (it is not case sensitive). This will cause a Cavedog Entertainment
bone to appear between the Load Game and Previous Menu icons on the
right side of the screen. Clicking on the bone will take players to a special
Play Any Game screen where they can play any Total Annihilation mission, even if
they have not earned their way to that level yet

Various cheats
I don't know why you need to cheat as an Greek god, but here
are some codes anyway. While playing the game, hit Ctrl + Alt + C, then type in
the codes below for the desired function. Remember, these codes are case-sensitive.
1,000 extra drachmae -- Delian Treasury
Beat current scenario in just a few
months -- Ambrosia
Dairy workers in cheese costumes -- Cheese Puff
Hurl
down fireballs at target -- Fireballs from Heaven
Towers shoot at the
cows -- Bovine and Arrows